schofield



F. C. SCHOFIELD.

DUMPING VEHICLE.

APPucATloN 111.50 13.17.1919.

Patented Sept. 7, 1920.

3 SHEETS-SHEET 2.

F. C. SCHOF|ELD.`

DUMPING VEHICLE.

MPL10/111011 FILED 11:11.17, 1919.

Patented Sept. 7, 1920.

SSHEETS-'SHEET 3- 11.11 l lI-Ilnlll lll f4.1..

- FIELD, of Salem, in the county of'ltoanokef` e 1,351,796. l i

UNITED*STATESPATENT OFFICE.

FREDERICK c. `SCHOFIELD, or SALEM, VIRGINIA, ASSIGNOR,` BYi'DIREcTVAND MESNE ASSIGNMENTS, 'ro THE HILLFIELD BODYn COMPANY; oFsALEM, VIRGINIA, .COR-,

IEORATIONf F 4VIRGINIA.

Il all 107mm# may concern." p

-Be it known that'I, linnonmoii C. SCHO- and State of Virginia, have inventedcertainv new and useful Improvements -in Dumpingy Vehicles,and dol hereby declare thatv the; following is a full,`clear,and exactdescrip` tion thereof. e

The object of my invention," generallyl stated is toprovide means for operatingthe bodies' of` automobile trucks 4and otlienve-4 hicles` whichwill require a minimum of ef` fort on the part,y of the operatorto move thej body, and expose him to Ano dangerJr of injury, and which vwill together with ythe body,

be capable of complete constructionforeas'y and inexpensive application to trucks which,

as made' andsold, arcnot alreadyy 'equipped'v with dumpingr bodies ,andi'for the attain" ment ofthisobject and to secureotherfad- '1f vantages 'not' necessary: to 'be' "pointed, 'out,f

my invention v'consists in 'thc *construction substantially as j hereinafter specifiedv and claimed. Y

In' the annexed drawings v Figure lis a side elevation of an'lautomobile truck embodying myinvention;

V Fig. 2 is a Vrear elevation;

Fig. fzd is .1 daan Side vlewof ,the tailgate Fig. 3 isl a' detail /viewin side elevation of the J operating mechanism; p

Fig. 41 is a top plan view thereof g' stop dog Vor detent Inasmuch as f1 havehadespeciallyivin view the application of* my finvention "tof -an i automobiletraekjfwhne lnot lim-einge,

thereto) *I j show. in krthe 1j drawing a f 'wellknown typefithaving a'chass'isflO andk a drivers L,cab 11, mounted only'onf :the kifor"- ward part ofthe chassis leaving abundant support in rear of the cab` for a bodyV 12 of tremity has'a pivotalconnection 15` with a bar 16, preferably a casting, that is boltedv to the side bar of the chassis, and thus the body is pivotally mounted uponthe latter.

The pivot is located a considerable distance,V

` VD'UiivrrING-vlnr1era.,l.fv Y i SPabmefel@NettesPermi-A .Ptnted 4Septft1920- applicati@ filedxremumy 17319119.' serial-Nuancen below`v thebody so iithat thebody when swung from itshorizontal position, at once moves bodily rearward, taking it from the cab immediately, and lc'ausing" it to promptly clearthe rear en'dfof the chassis'. The vbody whenin a horizontalpositiomcan thus 4be close to the rear 'of the cab, wastingy no room, and yyetv danger# of collision with ythegcab doesl notfexist; r Y Y n j- At the forward end of onek of the castings 16, on each-sideofthe truck, is ay crank disk 117, iiXed tol a cross" shaft 18 journaled` in bearings on the ltwo castings 16, and from the -wristpin 19 of said disk, a pitman 2O extends to and` is `pivotally connected with the bracket Menthe same side ofthe truck.l

One Vdisk has peripheralteeth 21 for engagement by apawl`22 carried by a leverv k23 ywhich normally extendsY `vhorizontally closeV to the lv,floor of the cab withv `its forward j end* in convenient position; to @be grasped v'by thefdrvver and swung upward. As-'soonfas the center of gravity ofk the loaded'body passes-inV rear of thebody pivot,

(fwhichfhappensgwith a comparatively short y movement of kthe operating- -lever)no furtherjeifort by 'ftheoper'ator is required ofthe operator, for the remainder ofthe tilting motionl ofthe body is done by gravity,

' yand, thejope'ratorf is eXposedto no danger from the lever,when the body thus moves p n Vvby `gravitybecause the ratchet Aconnection `Fig.V 5 :is al detail yiewof th lreversible between theflever andthe crank disky 'per-` lever-. TheI pa'wl 22 is double and reversible so :that itffmay be "usedto rotate the crank disk in kdirection for dumpinggandfor relstoring the dumped body to horizontal position'. 4"Itis 'mounted-f ona :rock shaft 241jour; i'aled inthe lever 23-andy near one end saidl shaft'has an arm 25 that is engagedfbyf a-lugy 26 on afrod4 27.thatfextencls through and'is'. swiveled in thelever23 and at the handle end ofthe lever has a head 28 for turning' the rod in either direction to shift they pawl. The head 28 has a V-shaped lug y29 that coactswith either of the two notches 80 in theglever end in yielding'engagement with *which it is heldby ya spring 31 inthe leverV 'that acts on thevrod to move it longitudinally, and thusthe pawl is held in either of yits two working positions. A spring 32 connected at one end to a radial finger on the p p y i y. y g mits the latter to runf away vfrom the l F ig. 6 is a detail; view ,ofthereversibley rock shaft 24: serves, in a ywell-known way, f

withthe crank disk in whichever of its two positions the pawl is placed. i

The teeth of the crank disk are also en-V gaged by either tooth of a 'double detent dog 33, which likewise is pivoted and spring-held ineither of its working positions, and which is shiftable to-change its working position by a treadle 34 in the floor of the cab, which treadle is connected by a pitman 35 with a crank 36 connected by a spring 37 with the dog, such connection being through the shaft on which the crank is fixed, to a collar on which'one end of the spring is secured, the other end ofl the spring engagingthe dog. (See Fig. G.) 'lhetreadle 34 is pivotally mounted in a bracket 38, a spring-held latch 340 and two coperating notches 341 holds it inleither position to which it is moved. Besides the lock which the dog 33 constitutes, I preferably mount the body kon its pivot so that it is overbalanced forward ofthe pivot, and

thus tends to remain in horizontalposition, and l provide a third holding means that consists of a finger 39 onthe cross shaft 18 which at its free end has a hook 40 adapted to catch over a bar or plate 4l on the bottom of the body when the latter reaches its horizontal position. Lost motion to cause the latching and releasing of the 1finger without movement of the body is provided by having the latching ,andA releasing motion take place during the vertical movement of the wrist pin v19 that imparts no appreciable longitudinal movement to the pitman 2O and hence no appreciable up and down movement to the body. v Y n 'Y The tail gate 13 is opened rand closed automatically by the swinging of the body and it is also adapted to be opened and closed' at will. A As shown it consists of a plate orl plates of sheet metal riveted at the bottom and sides to an angle iron 133,*and at each lower corner it has a pivot 42 in the lower angle of a-vtriangular frame 420.

The tail gate may be swung at will upon its pivots 42 when a swinging latch" bar43 that engages a rod or pin 44 on saidv frame is disengaged from said pin. To limit the downward swing of the tail gate so as to make it serve as. a prolongation of the body bottom, a cord or chain 45 may be used. The frame 420 is pivoted at its upper, for-l wardangle to a lng 46 on the body side at its top and to a crank arm 47 at suchupper angle is pivoted one end of a pitman 48 whose other end is pivoted to a side plate 16, which being stationary, it results that movement is thns imparted to the tail-gate carrying frame 420 andswinging the tail gate open or closed, according to the direction of swing of the body. By pivotingv the tail gate to the body at the elevated point afforded by the described location of the pivoting lug 46, the tail gate, in opening, moves .bodily outward from the body, wholly clear of material to be discharged from the body.

VI claim l. VIn a dumping vehicle, the combination of a chassis, a body, a drivers cab whose rear Lis forward of but close to the front of the body, abracket at each side of the body extending y downward below the bottom thereof and pivoted to the chassis at a fixed point, whereby the body has only a swinging motion, al rotary member situated. forward of saidk pvot, an operative connection between one of said brackets and said member to swing the body on said pivot,

means accessible to the driver in the cab, to rotate said member, driver-operated means to prevent the rotation of said member, a shaft on which saidV rotaryY member is mounted, extending transversely of `and supported by the chassis beneath the body, a hook carried by said shaft and a part on Vthe bottom of the body into and out of engagement with which said hook moves when the shaft is turned. Y

52.` In a dumping vehicle, the combination of a chassis, a body, a bracket at each side of the body extending downwardand pivoted below the body to the chassis at a fixed 

